Remove duplicates from an object array - php

Question

I have an object array that looks like this:
Array
(
[0] =>Object
(
[ClassScheduleID] => 2263
[Name] => Workout 1
[Location] => Object
(
[BusinessID] => 1
)
)
[1] =>Object
(
[ClassScheduleID] => 2263
[Name] => Workout 1
[Location] => Object
(
[BusinessID] => 13
)
)
[2] =>Object
(
[ClassScheduleID] => 2264
[Name] => Workout 2
[Location] => Object
(
[BusinessID] => 22
)
)
I am looking to identify that the ClassScheduleID of 2263 is a duplicate, and remove the duplicate entry's entire object from the array. So that I get:
Array
(
[0] =>Object
(
[ClassScheduleID] => 2263
[Name] => Workout 1
[Location] => Object
(
[BusinessID] => 1
)
)
[1] =>Object
(
[ClassScheduleID] => 2264
[Name] => Workout 2
[Location] => Object
(
[BusinessID] => 22
)
)
I tried the solution proposed here
How to remove duplicate values from a multi-dimensional array in PHP
but the count() remained the same

Answer 1

$count = 0;
foreach($arrayObj as $key => $value) {
if ($value['ClassScheduleID'] == 2263) {
$count++;
}
if ($count > 1){
unset($arrayObj[$key]);
$count--;
}
}
It works: http://ideone.com/fork/zrdDtu
Edit: Modified to delete any duplicates:
foreach($arrayObj as $key => $value) {
$count = 0;
foreach($arrayObj as $nkey => $nvalue) {
if ($value['ClassScheduleID'] == $nvalue['ClassScheduleID']) {
$count++;
}
if ($count > 1){
unset($arrayObj[$key]);
$count--;
}
}
}
var_dump($arrayObj);
See it here: http://ideone.com/fork/85RCst

Answer 2

function get_unique_array($array)
{
$result = array_map("unserialize", array_unique(array_map("serialize", $array)));
foreach ($result as $key => $value)
{
if ( is_array($value) )
{
$result[$key] = get_unique_array($value);
}
}
return $result;
}
Demo: http://3v4l.org/WOTHi#v430